/* ── Reset & Base ───────────────────────────────────────────────────────────── */
#spinweld-root *, #spinweld-root *::before, #spinweld-root *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --red: #dc2626;
  --red-dark: #b91c1c;
  --red-light: #fecaca;
  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50: #f9fafb;
  --white: #ffffff;
  --radius: 6px;
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
}

#spinweld-root {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 14px;
  color: var(--gray-800);
  background: var(--gray-100);
  line-height: 1.5;
  position: relative;
}

/* ── Header ─────────────────────────────────────────────────────────────────── */
#spinweld-root .site-header {
  background: var(--gray-900);
  border-bottom: 3px solid var(--red);
  position: sticky;
  top: 0;
  z-index: 100;
}
#spinweld-root .header-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 16px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
#spinweld-root .header-brand { display: flex; align-items: center; gap: 10px; }
#spinweld-root .brand-dot {
  width: 10px; height: 10px;
  background: var(--red);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(220,38,38,.3);
}
#spinweld-root .brand-title { font-size: 16px; font-weight: 700; color: var(--white); }
#spinweld-root .brand-sub { font-size: 11px; color: var(--gray-400); }
#spinweld-root .header-actions { display: flex; align-items: center; gap: 10px; }
#spinweld-root .job-status { font-size: 12px; color: var(--gray-400); }

/* ── Buttons ─────────────────────────────────────────────────────────────────── */
#spinweld-root .btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius);
  font-size: 13px; font-weight: 500;
  cursor: pointer; border: none; outline: none;
  transition: all .15s ease;
  white-space: nowrap;
}
#spinweld-root .btn:disabled { opacity: .45; cursor: not-allowed; }
#spinweld-root .btn-red { background: var(--red); color: var(--white); }
#spinweld-root .btn-red:hover:not(:disabled) { background: var(--red-dark); }
#spinweld-root .btn-outline {
  background: transparent;
  border: 1px solid var(--gray-600);
  color: var(--gray-300);
}
#spinweld-root .btn-outline:hover:not(:disabled) { border-color: var(--gray-400); color: var(--white); }
#spinweld-root .btn-sm { padding: 4px 10px; font-size: 12px; }
#spinweld-root .btn-danger { background: #7f1d1d; color: var(--white); }
#spinweld-root .btn-danger:hover { background: #991b1b; }
#spinweld-root .btn-light {
  background: var(--white); color: var(--gray-700);
  border: 1px solid var(--gray-300);
}
#spinweld-root .btn-light:hover { background: var(--gray-50); }

/* ── Main Sections ───────────────────────────────────────────────────────────── */
#spinweld-root #app { max-width: 1400px; margin: 0 auto; padding: 20px 16px; position: relative; }

#spinweld-root .section { display: none; }
#spinweld-root .section.active { display: block; }

#spinweld-root .section-header { margin-bottom: 20px; }
#spinweld-root .section-header h2 { font-size: 22px; font-weight: 700; color: var(--gray-900); }
#spinweld-root .section-hint { color: var(--gray-500); margin-top: 4px; }

/* ── Tank Grid ──────────────────────────────────────────────────────────────── */
#spinweld-root .tank-filter-bar {
  display: flex; gap: 8px; margin-bottom: 16px;
  flex-wrap: nowrap;
  align-items: center;
}
#spinweld-root .tank-search-big {
  flex: 1;
  min-width: 0;
  padding: 9px 14px;
  font-size: 15px;
  border: 2px solid var(--gray-300);
  border-radius: 20px;
  outline: none;
  transition: border-color .15s;
  height: 38px;
  box-sizing: border-box;
}
#spinweld-root .tank-search-big:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(220,38,38,.1);
}
@media (max-width: 700px) {
  #spinweld-root .tank-filter-bar { flex-wrap: wrap; }
}
#spinweld-root .tab-btn {
  padding: 6px 16px;
  border-radius: 100px;
  border: 1px solid var(--gray-300);
  background: var(--white);
  color: var(--gray-600);
  cursor: pointer; font-size: 13px;
  transition: all .15s;
}
#spinweld-root .tab-btn.active {
  background: var(--red); color: var(--white); border-color: var(--red);
}
#spinweld-root .tab-btn:hover:not(.active) { border-color: var(--gray-500); color: var(--gray-800); }

#spinweld-root .tank-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 16px;
}
#spinweld-root .tank-card {
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  overflow: hidden;
  cursor: pointer;
  transition: all .15s;
  box-shadow: var(--shadow);
}
#spinweld-root .tank-card:hover { border-color: var(--red); box-shadow: var(--shadow-md); transform: translateY(-1px); }
#spinweld-root .tank-card-img {
  width: 100%; height: 140px;
  object-fit: contain; background: var(--gray-50);
  padding: 8px;
}
#spinweld-root .tank-card-img-placeholder {
  width: 100%; height: 140px;
  background: var(--gray-100);
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-400); font-size: 28px;
}
#spinweld-root .tank-card-body { padding: 10px 12px 12px; }
#spinweld-root .tank-card-category {
  font-size: 10px; font-weight: 600; text-transform: uppercase;
  letter-spacing: .05em; color: var(--red); margin-bottom: 4px;
}
#spinweld-root .tank-card-title {
  font-size: 13px; font-weight: 600; color: var(--gray-900);
  line-height: 1.3; margin-bottom: 6px;
}
#spinweld-root .tank-card-dims {
  font-size: 11px; color: var(--gray-500);
  background: var(--gray-100); border-radius: 4px;
  padding: 3px 6px; display: inline-block; margin-bottom: 6px;
}
#spinweld-root .tank-card-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 6px; }
#spinweld-root .tank-card-gallons { font-size: 12px; color: var(--gray-600); }
#spinweld-root .tank-card-price { font-size: 13px; font-weight: 700; color: var(--gray-900); }

/* ── Builder Layout ─────────────────────────────────────────────────────────── */
#spinweld-root .builder-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 16px;
  align-items: start;
}
@media (max-width: 900px) {
  #spinweld-root .builder-layout { grid-template-columns: 1fr; }
}

/* ── Builder Tank Info Bar ──────────────────────────────────────────────────── */
#spinweld-root .builder-tank-info {
  display: flex; align-items: center; gap: 12px;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 8px 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}
#spinweld-root .tank-info-title { font-weight: 600; font-size: 13px; color: var(--gray-900); }
#spinweld-root .tank-info-dims {
  font-size: 12px; color: var(--gray-500);
  background: var(--gray-100); border-radius: 4px; padding: 2px 8px;
}

/* ── View Panels ────────────────────────────────────────────────────────────── */
#spinweld-root .views-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-bottom: 12px;
}
@media (max-width: 700px) {
  #spinweld-root .views-grid { grid-template-columns: 1fr; }
  #spinweld-root .tank-canvas { min-height: 200px; }
}

#spinweld-root .view-panel {
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: 8px;
  overflow: hidden;
  cursor: crosshair;
  transition: border-color .15s;
  user-select: none;
}
#spinweld-root .view-panel.active-view {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(220,38,38,.15);
}
#spinweld-root .view-panel.has-pending {
  border-color: #7c3aed;
  box-shadow: 0 0 0 3px rgba(124,58,237,.15);
}
#spinweld-root .view-label {
  background: var(--gray-800);
  color: var(--gray-300);
  font-size: 10px; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase;
  padding: 5px 10px;
  display: flex; align-items: center; justify-content: space-between;
}
#spinweld-root .view-dims { font-weight: 400; color: var(--gray-500); }
#spinweld-root .tank-canvas { display: block; width: 100%; }

/* ── Measurements Panel ─────────────────────────────────────────────────────── */
#spinweld-root .measurements-panel {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
}
#spinweld-root .measurements-header {
  background: var(--gray-800); color: var(--gray-300);
  font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  padding: 7px 12px;
}
#spinweld-root .measurements-list { padding: 8px; }
#spinweld-root .empty-hint { color: var(--gray-400); font-size: 12px; padding: 8px; text-align: center; }

#spinweld-root .measurement-item {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 8px;
  border-radius: 5px;
  margin-bottom: 4px;
  background: var(--gray-50);
  border: 1px solid var(--gray-100);
  font-size: 12px;
}
#spinweld-root .measurement-item:hover { background: var(--gray-100); }
#spinweld-root .fitting-dot {
  width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
}
#spinweld-root .measurement-name { font-weight: 600; color: var(--gray-800); flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#spinweld-root .measurement-view { font-size: 10px; color: var(--gray-500); background: var(--gray-200); border-radius: 3px; padding: 1px 5px; }
#spinweld-root .measurement-coords { color: var(--gray-600); font-size: 11px; white-space: nowrap; }
#spinweld-root .measurement-del {
  background: none; border: none; cursor: pointer; color: var(--gray-400);
  font-size: 14px; line-height: 1; padding: 0 2px;
  transition: color .1s;
}
#spinweld-root .measurement-del:hover { color: var(--red); }

/* ── Fitting Catalog ─────────────────────────────────────────────────────────── */
#spinweld-root .fitting-catalog-col {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  display: flex; flex-direction: column;
  max-height: calc(100vh - 80px);
  position: sticky;
  top: 72px;
}
#spinweld-root .catalog-header { padding: 12px 12px 8px; border-bottom: 1px solid var(--gray-200); }
#spinweld-root .catalog-header h3 { font-size: 14px; font-weight: 700; margin-bottom: 8px; }
#spinweld-root .fitting-search {
  width: 100%; padding: 6px 10px;
  border: 1px solid var(--gray-300); border-radius: 5px;
  font-size: 12px; color: var(--gray-800); outline: none;
  transition: border-color .15s;
}
#spinweld-root .fitting-search:focus { border-color: var(--red); }

#spinweld-root .catalog-filter-bar {
  padding: 8px 12px;
  display: flex; gap: 5px; flex-wrap: wrap;
  border-bottom: 1px solid var(--gray-200);
}
#spinweld-root .chip-btn {
  padding: 3px 9px; border-radius: 100px; font-size: 11px;
  border: 1px solid var(--gray-300); background: var(--white); color: var(--gray-600);
  cursor: pointer; transition: all .12s;
}
#spinweld-root .chip-btn.active { background: var(--red); color: var(--white); border-color: var(--red); }
#spinweld-root .chip-btn:hover:not(.active) { border-color: var(--gray-500); }

#spinweld-root .fitting-list {
  overflow-y: auto; flex: 1;
  padding: 8px;
}
#spinweld-root .fitting-item {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 8px;
  border-radius: 6px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all .12s;
  margin-bottom: 4px;
}
#spinweld-root .fitting-item:hover { background: var(--gray-50); border-color: var(--gray-200); }
#spinweld-root .fitting-item.selected { background: #fff0f0; border-color: var(--red); }
#spinweld-root .fitting-img {
  width: 40px; height: 40px; object-fit: contain;
  border-radius: 4px; background: var(--gray-100); flex-shrink: 0;
}
#spinweld-root .fitting-img-placeholder {
  width: 40px; height: 40px; border-radius: 4px;
  background: var(--gray-100); display: flex; align-items: center; justify-content: center;
  font-size: 18px; flex-shrink: 0;
}
#spinweld-root .fitting-info { flex: 1; min-width: 0; }
#spinweld-root .fitting-name { font-size: 12px; font-weight: 600; color: var(--gray-900); line-height: 1.3; }
#spinweld-root .fitting-meta { display: flex; align-items: center; gap: 5px; margin-top: 3px; }
#spinweld-root .fitting-type-badge {
  font-size: 10px; font-weight: 600; border-radius: 3px;
  padding: 1px 5px; color: var(--white);
}
#spinweld-root .fitting-sku { font-size: 10px; color: var(--gray-500); }
#spinweld-root .fitting-price { font-size: 11px; font-weight: 600; color: var(--gray-800); margin-left: auto; white-space: nowrap; }

/* ── Tooltip ─────────────────────────────────────────────────────────────────── */
#spinweld-root .fitting-tooltip {
  position: fixed;
  background: var(--gray-900);
  border: 1px solid var(--gray-700);
  border-radius: 8px;
  padding: 10px 12px;
  z-index: 200;
  min-width: 180px;
  box-shadow: var(--shadow-lg);
  pointer-events: all;
}
#spinweld-root .fitting-tooltip.hidden { display: none; }
#spinweld-root .tooltip-title { font-size: 12px; font-weight: 700; color: var(--white); margin-bottom: 6px; }
#spinweld-root .tooltip-measurements { font-size: 11px; color: var(--gray-400); margin-bottom: 8px; line-height: 1.7; }
#spinweld-root .tooltip-measurements span { color: var(--gray-200); }

/* ── Modals ──────────────────────────────────────────────────────────────────── */
#spinweld-root .modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,.55);
  display: flex; align-items: center; justify-content: center;
  z-index: 999999;
}
/* When embedded in Shopify, fixed positioning may be clipped — fallback */
#spinweld-root .modal-overlay {
  position: absolute;
  min-height: 100%;
}
#spinweld-root .modal-overlay.hidden { display: none; }
#spinweld-root .modal {
  background: var(--white);
  border-radius: 10px;
  width: 440px; max-width: calc(100vw - 32px);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
#spinweld-root .modal-sm { width: 340px; }
#spinweld-root .modal-header {
  background: var(--gray-900); color: var(--white);
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
}
#spinweld-root .modal-header h3 { font-size: 15px; font-weight: 700; }
#spinweld-root .modal-close {
  background: none; border: none; color: var(--gray-400);
  font-size: 16px; cursor: pointer; line-height: 1;
  transition: color .1s;
}
#spinweld-root .modal-close:hover { color: var(--white); }
#spinweld-root .modal-body { padding: 18px; display: flex; flex-direction: column; gap: 14px; }
#spinweld-root .modal-body label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; font-weight: 500; color: var(--gray-700); }
#spinweld-root .modal-body input {
  padding: 8px 10px; border: 1px solid var(--gray-300);
  border-radius: 5px; font-size: 14px; color: var(--gray-900); outline: none;
  transition: border-color .15s;
}
#spinweld-root .modal-body input:focus { border-color: var(--red); }
#spinweld-root .required { color: var(--red); }
#spinweld-root .modal-footer {
  display: flex; justify-content: flex-end; gap: 8px;
  padding: 12px 18px;
  border-top: 1px solid var(--gray-200);
  background: var(--gray-50);
}

#spinweld-root .share-link-box { display: flex; gap: 8px; margin-top: 8px; }
#spinweld-root .share-link-box input {
  flex: 1; padding: 7px 10px; border: 1px solid var(--gray-300);
  border-radius: 5px; font-size: 12px; color: var(--gray-700); background: var(--gray-50);
}

/* ── Loading Spinner ─────────────────────────────────────────────────────────── */
#spinweld-root .loading-spinner {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 40px; gap: 12px; color: var(--gray-500); font-size: 13px;
  grid-column: 1 / -1;
}
#spinweld-root .spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--gray-200);
  border-top-color: var(--red);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Misc ────────────────────────────────────────────────────────────────────── */
#spinweld-root .text-error { color: var(--red); font-size: 12px; }
#spinweld-root .error-banner {
  background: #fef2f2; border: 1px solid #fecaca;
  color: #991b1b; border-radius: 6px; padding: 10px 14px;
  font-size: 13px; margin-bottom: 12px;
  grid-column: 1 / -1;
}

/* ── Save Section (Bunk Builder style) ─────────────────────────────────────── */
#spinweld-root .save-section { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
#spinweld-root .save-status-line { font-size: 13px; color: #15803d; text-align: center; margin: 0; }
#spinweld-root .save-status-line.hidden { display: none; }
#spinweld-root .project-info-section {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
#spinweld-root .section-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 2px;
}
#spinweld-root .section-num {
  width: 26px; height: 26px;
  background: #dc2626;
  color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700;
  flex-shrink: 0;
}
#spinweld-root .section-title { font-size: 16px; font-weight: 700; color: #111827; }
#spinweld-root .project-fields { display: flex; flex-direction: column; gap: 12px; }
#spinweld-root .save-field-group { display: flex; flex-direction: column; gap: 5px; }
#spinweld-root .save-field-group label { font-size: 11px; font-weight: 700; letter-spacing: .06em; color: #6b7280; text-transform: uppercase; }
#spinweld-root .save-field-group input {
  padding: 10px 12px;
  border: 1.5px solid #e5e7eb;
  border-radius: 8px;
  font-size: 14px;
  color: #111827;
  outline: none;
  width: 100%;
  box-sizing: border-box;
  transition: border-color .15s, background .15s;
}
#spinweld-root .save-field-group input:focus { border-color: #dc2626; }
#spinweld-root .save-field-group input.has-value { background: #fefce8; border-color: #fde047; }
#spinweld-root .save-field-group input::placeholder { color: #c4c9d1; }
#spinweld-root .btn-save-full {
  width: 100%;
  padding: 14px;
  border: 2px solid var(--gray-300);
  border-radius: 8px;
  background: var(--white);
  color: var(--gray-700);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all .15s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
#spinweld-root .btn-save-full:hover:not(:disabled) { border-color: var(--red); color: var(--red); }
#spinweld-root .btn-save-full:disabled { opacity: .45; cursor: not-allowed; }
#spinweld-root .btn-pdf-full {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 8px;
  background: var(--red);
  color: var(--white);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background .15s;
}
#spinweld-root .btn-pdf-full:hover:not(:disabled) { background: #a00d24; }
#spinweld-root .btn-pdf-full:disabled { opacity: .45; cursor: not-allowed; }

/* ── Save Confirmation (inline share link) ─────────────────────────────────── */
#spinweld-root .save-confirmation { display: flex; flex-direction: column; gap: 10px; }
#spinweld-root .save-confirmation.hidden { display: none; }
#spinweld-root .share-link-box { display: flex; gap: 8px; }
#spinweld-root .share-link-box input {
  flex: 1;
  padding: 7px 10px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  font-size: 12px;
  color: var(--gray-600);
  background: var(--white);
  outline: none;
  min-width: 0;
}

/* ── Tank Search Bar - more prominent ──────────────────────────────────────── */
#spinweld-root #tank-search {
  height: 38px;
  padding: 0 14px;
  font-size: 14px;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  min-width: 240px;
  max-width: 300px;
  color: #111827;
  background: #fff;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
#spinweld-root #tank-search:focus {
  border-color: #dc2626;
  box-shadow: 0 0 0 3px rgba(220,38,38,.1);
}
#spinweld-root #tank-search::placeholder { color: #9ca3af; font-size: 13px; }
@media (max-width: 600px) {
  #spinweld-root #tank-search { min-width: 0; width: 100%; max-width: 100%; margin-top: 8px; }
  #spinweld-root .tank-filter-bar { flex-wrap: wrap; }
}

/* ── Order Summary ─────────────────────────────────────────────────────────── */
#spinweld-root .order-summary {
  margin-bottom: 12px;
  background: var(--white);
  border: 2px solid var(--red);
  border-radius: 8px;
  padding: 14px 16px;
  box-shadow: 0 2px 8px rgba(220,38,38,0.1);
}
#spinweld-root .order-summary.hidden { display: none; }
#spinweld-root .order-summary-title {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--gray-600);
  margin-bottom: 10px;
}
#spinweld-root .order-summary-rows { display: flex; flex-direction: column; gap: 6px; }
#spinweld-root .order-row {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--gray-700);
}
#spinweld-root .order-total-row {
  border-top: 2px solid var(--gray-200);
  padding-top: 10px;
  margin-top: 6px;
  font-weight: 700;
  font-size: 18px;
  color: var(--red);
}
#spinweld-root .order-summary-note {
  font-size: 11px;
  color: var(--gray-400);
  margin-top: 8px;
  font-style: italic;
}

/* ── Add to Cart Button ────────────────────────────────────────────────────── */
#spinweld-root .btn-add-to-cart {
  display: block;
  width: 100%;
  margin-top: 12px;
  padding: 14px 20px;
  border: none;
  border-radius: 8px;
  background: #16a34a;
  color: #ffffff;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: background .15s, transform .1s;
  letter-spacing: .01em;
}
#spinweld-root .btn-add-to-cart:hover:not(:disabled) {
  background: #15803d;
  transform: translateY(-1px);
}
#spinweld-root .btn-add-to-cart:active:not(:disabled) { transform: translateY(0); }
#spinweld-root .btn-add-to-cart:disabled { opacity: .45; cursor: not-allowed; transform: none; }